Improvement in straw-cutters



R. CLARKHUFF.

Straw Cutter.

Patented March 31, 1863.

UNITED STATES PATENT OFFICE.

RALPH GARKHUFF, OF LEWISBURG, PENNSYLVANIA, ASSIGNOB TO HIMSELF AND LYMAN S. PAINE.

IMPROVEMENT IN STRAW-CUTTERS.

To @ZZ whom it may concern.:

Be it known that I, RALPH GAEKHUEE, of Lewisburg, in the county of Union and State of Pennsylvania, have invented a new and mproved fodder-cutter, designed for cutting hay, straw, cornstalks, and other like substances; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specication, in which- Figure 1 is a perspective view of the machine. Fig. 2 is a front view of the throatpiece A, and with it the fulcrum and guidesegmentfor lever F, the whole making or being composed of one piece. Fig. 3 is a section taken in line of m, Fig. 2. Fig. 4 is a front view of cutting-lever F and cross-head E and set-screw P P, and contains the knife D, and has also a movable fodder-guide. Fig. 5 is a section of the cross-head E, set-screws P P, and pivot and set-screws R, taken in line of Y Y, Fig. 4. Fig. 6 is a section, taken in the lines Z Z, Figs. 2 and 3 and Figs. 4 and 5.

Similar letters of reference indicate correspondin g parts in the several figures.

This invention consists in a pecullar means employed to guide and control the cuttlnglever, and making the guide and fulcrum and throat all in one piece, so as to make a more simple and perfect machine than has been heretofore attained.

To enable those skilled in the art to fully understand, construct, and use my invention, I will proceed to describe it.

A represents the throat-piece.

B is the fulcrum upon which the cuttinglever F works.

G is the lever-guide segment.

P P are two set-screws to regulate shoulder piece or ring J on the fulcrum B, or, in the place of set screws, springs may be used to regulate shoulder-piece J.

H is a recess sunk around the fulcrnm B to admit the adjustable shoulder J, Fig. 3.

J is a loose shoulder or ring on fulcrum B to adjust the cutting-lever F, so as to suit different thicknesses of knife and to compensate for wearing olf of the projection on throatpiece.

The throat-piece A, fulcrum B, lever-guide segment C, and recess H are all formed of one piece, or by the use of but one piece.

R is a set-screw, and forms a pivot by which, together with the set-screws P P, the knife D can be adj usted to suit all contingencies.

The segment piece M is a plate placed be tween lever-guide segment C and set screws P P to prevent them from slipping or wearin g, and may be used or rejected.

F is the cutting-lever, and has a recess to admit of knife D, so as to face on the straw side and prevent the catching of fodder. The extension of arm L to receive the cross-head E with its set-screws P P and R form the lateral adjusting arrangement for setting the knife D.

The fodder-guide K is attached to the cutting-lever F by a stationary piu, N, Figs. 4 and 6, and can be set any required distance from the throat A by moving it on the pin N and fixing it there by the set-screw Q, Fig. 6.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The throat-piece A of a cutting-box, provided with fulcrum B and segment G, when constructed as and for the purpose set forth.

2. Lever F, provided with the arm L, crosshead E, set-screws P P and It, and stud N, as and for the purpose set forth.

3. Making the apron K adjustable, by means of the stud N and set screw Q, as and for the purpose set forth.

RALPH CAEKEUEE.

Witnesses:

L. B. CHR-Is'r, SAML. II. ORWIG. 

